Note
that bracing has been added at front and back to prevent the floor
arch collapsing. The loose bricks on plastic cover the bagwall
areas. The castable material used to level the floor above the
floor arch was a good brew, not affected by salt. The
manufacturer's name and address , printed on the bag, was

Heat
Containment Industries, Glastonbury AvenueUnanderra, NSW.

They
do not seem to be operating under that name now. If anyone knows
what they became please let me know. We used this stuff in the
construction of our anagama and need some more for
repairs.(Thanks to Anthony Brow who has
found out that the new name of the firm above is “Thermal
Ceramics Australia”)

If
you look at the exit
flues photoyou will realise that this flat floor should have had
indentations at the far side to make the exit flue construction
easier.

The
lower photo shows the floor arch under the castable fill.

The
length of firewood here is to keep the steel bracing at the
correct separation to guide the rest of the wall as it is
constructed.